What is the difference between an abstract class and an interface in Python?

What is the difference between an abstract class and an interface in Python?

In Python, an abstract class can have both abstract methods (without implementation) and concrete methods (with implementation), while an interface (using ABC module) only defines abstract methods.

Can you give me an example of each?

Sure! An abstract class can be defined using the abc module with @abstractmethod. An interface can be created by inheriting from an abstract class with only abstract methods.

Are there any limitations to using interfaces?

Yes, interfaces in Python cannot have any implementation. They are purely for defining a contract that other classes must follow.

When should I use an abstract class instead of an interface?

Use an abstract class when you want to provide some shared functionality among subclasses, and use an interface when you want to enforce a contract without any shared code.